Aircraft designer and manufacturer (1878–1930) who pioneered such far-reaching innovations as the aileron, the pontoon airplane, the flying boat, dual pilot controls, and the retractable landing gear. Vintage ink signature, “Glenn Curtiss, Feb. 20th 1925,” on an off-white 6 x 3 sheet. Matted with a photo to an overall size of 12 x 16. Faint scattered spotting, otherwise fine condition. R&R COA.